Cookhtg-stqve



J. SPEAR- Cooking Stove;

Patented lune 1, 1858. a

UNITED STATES PATENT OFFICE.

JAS. SPEAR, OF PHILADELPHIA, PENNSYLVANIA.

COOKING-STQVE.

Specification of Letters Patent No. 20,450, dated June 1, 1858.

To all whom it may concern:

Be it known that I, JAMES SPEAK, of Philadelphia city and county andState of Pennsylvania, have invented certain new and useful Improvementsin Cooking-Stoves; and I do hereby declare that the following is a full,clear, and exact description of the same. reference being had to theaccompanying drawings and to the letters of reference marked thereon.

The nature of my invention consists in the construction of centerpieces, covers, and top plates on cooking stoves and ranges to preventthem from being effected by excessive heat and also for the introductionof small jets of heated air directly over the fire for the purpose ofigniting the gas arising from the coal, thereby producing a bettercombustion of the same.

In order that those skilled in the art may make and use my invention Iwill proceed to describe its construction and operation.

In the annexed figures, Figure 1, represents a plan View of the stove.Fig. 2 is a longitudinal section through the center of the stove. Fig. 3represents a perspective view of the movable center pieces. Fig. 4, is aperspective view of the center piece reversed.

I effect the object stated in the nature of this invention by means of ahollow center piece A, connecting middle center piece, B, and frontcenter plate I), forming a fine or passage for air from the front curvedplate D, to the back center piece, B, thereby bringing a current of coolair through the front center piece, directly over the fire, allowing aportion of it to escape through the small openings (at a a) on the underside, thereby preserving it from the injurious effects of the fire, andproducing a better effect than is produced in my patent granted April13th 1858.

At the back center piece where it connects with the front center piece,there is placed a guard F, in the center for the purpose of spreadingthe air to the ends of the center piece, B. before it escapes over thefire, thus thoroughly heating the air in its passage, as well asprotecting the plates from the heat.

The covers (M, M) are made hollow, with opening N, at top and L,representing a guard, in the inside, for the purpose of forming a fluefor the passage of air around the edges of the cover and escapingthrough an opening P, in the guard, into the center of the cover, andthence passing through small openings directly over the fire, producingnearly the same effect, as the center pieces. These center pieces may bemade hollow and closed at each end, with openings at top and bottom, thesame as the cover, and may each be made independently of each other. D,is a curved plate, with a lip placed behind the front plate, for thepurpose of forming a flue to conduct the air from openings E, in thefront plate to the center piece, when joining them together forming aflue (0) from the front plate to the back center iece thereb oreservinthem from the in- P a y 1 jurious effect of the heat.

It will be perceived that the front center piece is joined to the frontplates and the back center piece in such a manner as to form a neatjointthe lip (c) of the front center piece corresponding with (c),corresponding with (f) and (g) corresponding with (g), and lug (0)corresponding with the socket (0'), thus securing the several partstogether and forming a nice joint. Both ends of the front center pieceare constructed in the same manner so that it may be reversed and madeto fit either side, alike.

The same construction of center pieces, covers, and top plates can beapplied to ranges with the same advantageous results.

Having thus fully described my invention what I claim and desire tosecure by Letters Patent is l. The adjustable hollow front, and middlecenter pieces A, and B, perforated on the lower side, arranged andconstructed in the manner herein set forth, and for the purposedescribed.

2. I claim the curved plate D, with lip when connected with front plateH, and top plate Gr, and hollow center pieces A and B, or theirequivalents, constructed in the manner and for the purpose set forth.

3. I claim the hollow covers, M, M, constructed in the manner herein setforth and for the purpose described.

4. I claim the combination of the covers as constructed with the centerpieces as constructed, substantially as set forth.

JAMES SPEAR.

Witnesses:

C. M.'ALEXANDER, F. E. GLnAsoN.

